/* ================================================================
   SPEC59 — Main Stylesheet v2
   Style: Swiss Minimalism (ref: okonnoe-reshenie.ru)
   Fonts: Outfit (headings, geometric) + Inter (body)
   Palette: White + Deep Navy + Orange accent
================================================================ */

/* ----------------------------------------------------------------
   1. CSS VARIABLES
---------------------------------------------------------------- */
:root {
  /* Fonts */
  --font-heading: 'Outfit', system-ui, -apple-system, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  /* Brand accent — construction orange */
  --c-primary:   #f5b90d;
  --c-primary-h: #d4a009;
  --c-primary-l: #fcf0cd;

  /* Call button */
  --c-accent:    #22C55E;
  --c-accent-h:  #16A34A;

  /* Backgrounds */
  --c-bg:        #F4F5F7;   /* Page bg — very light gray */
  --c-bg-white:  #FFFFFF;
  --c-bg-alt:    #F0F2F5;   /* Alternate section bg */
  --c-bg-dark:   #1B2B4B;   /* Hero / dark sections */
  --c-bg-dark-2: #141E33;

  /* Text */
  --c-text:       #111827;
  --c-text-muted: #64748B;
  --c-text-light: #94A3B8;
  --c-text-white: #F9FAFB;

  /* Borders */
  --c-border:     #E5E7EB;
  --c-border-md:  #D1D5DB;

  /* Service accent stripes (subtle) */
  --c-welding:   #374151;
  --c-electro:   #f5b90d;
  --c-water:     #0284C7;
  --c-concrete:  #78716C;

  /* Shadows — subtle, Swiss-style */
  --shadow-xs:  0 1px 2px rgba(0,0,0,0.05);
  --shadow-sm:  0 2px 6px rgba(0,0,0,0.07);
  --shadow:     0 4px 16px rgba(0,0,0,0.09);
  --shadow-md:  0 8px 28px rgba(0,0,0,0.11);
  --shadow-lg:  0 20px 48px rgba(0,0,0,0.13);

  /* Layout */
  --container:  1200px;
  --header-h:   68px;
  --radius:     6px;
  --radius-sm:  4px;
  --radius-lg:  10px;

  /* Transitions */
  --t-fast: 150ms ease;
  --t-base: 250ms ease;
  --t-slow: 400ms ease;
}

/* ----------------------------------------------------------------
   2. RESET & BASE
---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding-top: var(--header-h);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

/* Global SVG safety */
svg { max-width: 100%; }
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
h1,h2,h3,h4,h5,h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.5em;
  color: var(--c-text);
}
p { margin-top: 0; }

:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ----------------------------------------------------------------
   3. CONTAINER & LAYOUT
---------------------------------------------------------------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}
@media (min-width: 768px)  { .container { padding: 0 36px; } }
@media (min-width: 1280px) { .container { padding: 0 48px; } }

.section { padding: 72px 0; }
@media (min-width: 768px) { .section { padding: 100px 0; } }

.section-header {
  max-width: 600px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-header--left { margin: 0 0 56px; text-align: left; }

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.625rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--c-text);
  margin-bottom: 14px;
  position: relative;
  display: inline-block;
}
/* Accent underline on section titles */
.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--c-primary);
  margin: 12px auto 0;
  border-radius: 2px;
}
.section-header--left .section-title::after { margin-left: 0; }

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.7;
}

/* ----------------------------------------------------------------
   4. ICONS
---------------------------------------------------------------- */
.icon { display: inline-block; vertical-align: middle; flex-shrink: 0; }
.icon--xs { width: 14px; height: 14px; }

/* ----------------------------------------------------------------
   5. BUTTONS
---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--t-base), color var(--t-base),
              border-color var(--t-base), box-shadow var(--t-base),
              transform var(--t-fast);
  white-space: nowrap;
  text-decoration: none;
  min-height: 48px;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 3px; }

.btn--primary {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}
.btn--primary:hover {
  background: var(--c-primary-h);
  border-color: var(--c-primary-h);
  box-shadow: 0 4px 16px rgba(245,185,13,0.3);
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
}

.btn--outline-dark {
  background: transparent;
  color: var(--c-text);
  border-color: var(--c-border-md);
}
.btn--outline-dark:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.btn--accent {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}
.btn--accent:hover {
  background: var(--c-accent-h);
  border-color: var(--c-accent-h);
  color: #fff;
}

.btn--dark {
  background: var(--c-bg-dark);
  color: #fff;
  border-color: var(--c-bg-dark);
}
.btn--dark:hover {
  background: var(--c-bg-dark-2);
  border-color: var(--c-bg-dark-2);
  color: #fff;
}

.btn--lg { padding: 15px 36px; font-size: 1rem; min-height: 52px; }
.btn--sm { padding: 8px 18px; font-size: 0.875rem; min-height: 36px; }

/* ----------------------------------------------------------------
   6. HEADER — sticky, semi-transparent dark navy
---------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(27,43,75,0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: box-shadow var(--t-base);
}
.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  height: var(--header-h);
  gap: 20px;
}

/* Logo */
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.header-logo__icon { display: flex; }
.custom-logo { width: 38px; height: 38px; border-radius: 4px; }
.header-logo__name {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.header-logo .logo-text-spec { color: #f5b90d; }
.header-logo .logo-text-num  { color: #FFFFFF; }

/* Phone */
.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-fast);
  margin-left: auto;
}
.header-phone:hover { color: var(--c-primary); }
.header-phone svg { width: 18px; height: 18px; flex-shrink: 0; }
.header-phone span { display: none; }

@media (min-width: 480px) { .header-phone span { display: inline; } }

/* Desktop Nav */
.header-nav { display: none; }

@media (min-width: 1024px) {
  .header-nav {
    display: flex;
    align-items: center;
  }
  .header-phone { margin-left: auto; }
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 7px 14px;
  color: rgba(255,255,255,0.78);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  transition: color var(--t-fast), background-color var(--t-fast);
  text-decoration: none;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-link.active { color: #fff; background: rgba(255,255,255,0.1); }
.nav-link--accent { color: var(--c-primary) !important; font-weight: 700; }
.nav-link--accent:hover { background: rgba(245,185,13,0.12) !important; }

/* Dropdown */
.has-dropdown { position: relative; }
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  min-width: 190px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 6px;
  padding-top: 16px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-base), visibility var(--t-base), transform var(--t-base);
  pointer-events: none;
  z-index: 200;
}
.has-dropdown:hover .nav-dropdown,
.has-dropdown:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.has-dropdown.dropdown-closing .nav-dropdown {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}
.nav-dropdown__link {
  display: block;
  padding: 9px 14px;
  color: var(--c-text);
  font-size: 0.875rem;
  font-family: var(--font-heading);
  border-radius: var(--radius-sm);
  transition: color var(--t-fast), background-color var(--t-fast);
}
.nav-dropdown__link:hover { color: var(--c-primary); background: var(--c-bg-alt); }

/* Mobile hamburger */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: var(--c-primary);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-left: auto;
  flex-shrink: 0;
  transition: background-color var(--t-fast);
}
.mobile-toggle:hover { background: var(--c-primary-h); }
.mobile-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-fast);
}
.mobile-toggle.is-active .mobile-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.is-active .mobile-toggle__bar:nth-child(2) { opacity: 0; }
.mobile-toggle.is-active .mobile-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 1024px) { .mobile-toggle { display: none; } }

/* ----------------------------------------------------------------
   7. MOBILE MENU OVERLAY
---------------------------------------------------------------- */
.mobile-menu { position: fixed; inset: 0; z-index: 200; }
.mobile-menu[hidden] { display: none; }

.mobile-menu__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.55);
}

.mobile-menu__panel {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: min(340px, 90vw);
  background: var(--c-bg-dark);
  padding: 20px 24px 32px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: -8px 0 40px rgba(0,0,0,0.3);
}

.mobile-menu__close {
  align-self: flex-end;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.08);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  cursor: pointer;
  transition: background-color var(--t-fast);
  margin-bottom: 8px;
}
.mobile-menu__close:hover { background: rgba(255,255,255,0.15); }

.mobile-menu__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 4px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 8px;
  font-family: var(--font-heading);
  font-weight: 800;
  color: #fff;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}

.mobile-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  color: rgba(255,255,255,0.8);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  cursor: pointer;
  transition: background-color var(--t-fast), color var(--t-fast);
}
.mobile-nav__link:hover { background: rgba(255,255,255,0.08); color: #fff; }
.mobile-nav__link--accent { color: var(--c-primary); }

.mobile-nav__sub { padding: 4px 0 4px 16px; }
.mobile-nav__sub[hidden] { display: none; }
.mobile-nav__sub-link {
  display: block;
  padding: 9px 16px;
  color: rgba(255,255,255,0.6);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background-color var(--t-fast), color var(--t-fast);
}
.mobile-nav__sub-link:hover { background: rgba(255,255,255,0.06); color: #fff; }

.mobile-menu__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: auto;
  padding: 14px 24px;
  background: var(--c-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius);
  text-decoration: none;
  min-height: 52px;
  transition: background-color var(--t-fast);
}
.mobile-menu__cta:hover { background: var(--c-primary-h); color: #fff; }

/* ----------------------------------------------------------------
   8. FLOATING CALL BUTTON — mobile only, fixed
---------------------------------------------------------------- */
.call-float { display: none; }

@media (max-width: 1023px) {
  .call-float {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    bottom: 24px;
    right: 20px;
    width: 56px;
    height: 56px;
    background: var(--c-accent);
    border-radius: 50%;
    box-shadow: 0 4px 16px rgba(34,197,94,0.45);
    z-index: 99;
    transition: background-color var(--t-fast), transform var(--t-fast);
    animation: pulse-green 2.5s ease-in-out infinite;
    text-decoration: none;
  }
  .call-float:hover { background: var(--c-accent-h); transform: scale(1.07); }
  .call-float:active { transform: scale(0.95); }
  .call-float svg { width: 24px; height: 24px; flex-shrink: 0; }
}

@keyframes pulse-green {
  0%,100% { box-shadow: 0 4px 16px rgba(34,197,94,0.45), 0 0 0 0 rgba(34,197,94,0.35); }
  50%      { box-shadow: 0 4px 16px rgba(34,197,94,0.45), 0 0 0 9px rgba(34,197,94,0); }
}

/* ----------------------------------------------------------------
   9. HERO SECTION
---------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-bg-dark);
}

.hero__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero__bg--default {
  background: linear-gradient(125deg, #141E33 0%, #1B2B4B 55%, #1E3260 100%);
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(20,30,51,0.88) 0%, rgba(20,30,51,0.5) 60%, rgba(20,30,51,0.2) 100%);
}

/* Decorative corner accent */
.hero::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 320px;
  height: 320px;
  background: var(--c-primary);
  opacity: 0.07;
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; width: 100%; }

.hero__content {
  max-width: 680px;
  padding: 16px 0;
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.hero__tag {
  padding: 4px 12px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.7);
}
.hero__tag--welding  { border-color: rgba(107,114,128,0.5); }
.hero__tag--electro  { border-color: rgba(245,185,13,0.6);   color: #f5b90d; }
.hero__tag--water    { border-color: rgba(2,132,199,0.6);   color: #7DD3FC; }
.hero__tag--concrete { border-color: rgba(120,113,108,0.5); }

.hero__title {
  font-size: clamp(2rem, 5.5vw, 4rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.1875rem);
  color: rgba(255,255,255,0.6);
  font-weight: 400;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.hero__text {
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.75;
  max-width: 540px;
  margin-bottom: 36px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 44px;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.hero__trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
}
.hero__trust-item svg { color: var(--c-primary); flex-shrink: 0; }

.hero__scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.3);
  animation: bounce 2s ease-in-out infinite;
}
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(8px); }
}

/* ----------------------------------------------------------------
   10. SERVICES OVERVIEW — 4 cards (Section 2)
---------------------------------------------------------------- */
.section--services { background: var(--c-bg-white); }

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 600px)  { .services-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .services-grid { grid-template-columns: repeat(4, 1fr); } }

/* Service Card — clean white, top color stripe */
.service-card {
  display: flex;
  flex-direction: column;
  background: var(--c-bg-white);
  border: 1px solid var(--c-border);
  border-top: 4px solid var(--c-border-md);
  border-radius: var(--radius-lg);
  padding: 28px 24px 24px;
  color: var(--c-text);
  box-shadow: var(--shadow-sm);
}

/* Badge as link */
a.service-card__badge {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: opacity var(--t-base), transform var(--t-base);
}
a.service-card__badge:hover { opacity: 0.8; transform: scale(1.08); }

/* Title as link */
.service-card__title-link {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-base);
}
.service-card__title-link:hover { color: var(--c-primary); }

/* Service color top stripes */
.service-card--welding  { border-top-color: var(--c-welding); }
.service-card--electro  { border-top-color: var(--c-electro); }
.service-card--water    { border-top-color: var(--c-water); }
.service-card--concrete { border-top-color: var(--c-concrete); }

.service-card--welding:hover  { box-shadow: 0 8px 28px rgba(55,65,81,0.15); }
.service-card--electro:hover  { box-shadow: 0 8px 28px rgba(245,185,13,0.15); }
.service-card--water:hover    { box-shadow: 0 8px 28px rgba(2,132,199,0.15); }
.service-card--concrete:hover { box-shadow: 0 8px 28px rgba(120,113,108,0.15); }

.service-card__badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  margin-bottom: 16px;
}
.service-card__badge--welding  { background: #F3F4F6; color: var(--c-welding); }
.service-card__badge--electro  { background: #fdf8e7; color: var(--c-electro); }
.service-card__badge--water    { background: #E0F2FE; color: var(--c-water); }
.service-card__badge--concrete { background: #F5F5F4; color: var(--c-concrete); }

.service-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.service-card__list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 20px;
}
.service-card__list li {
  font-size: 0.875rem;
  padding-left: 16px;
  position: relative;
  line-height: 1.55;
  color: var(--c-text-muted);
}
.service-card__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--c-primary);
  font-weight: 700;
}

.service-card__footer {
  display: flex;
  gap: 24px;
  border-top: 1px solid var(--c-border);
  padding-top: 16px;
  margin-bottom: 16px;
}
.service-card__price,
.service-card__period { display: flex; flex-direction: column; gap: 3px; }
.service-card__price .label,
.service-card__period .label {
  font-size: 0.6875rem;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--c-text-light);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.service-card__price .value,
.service-card__period .value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--c-text);
}

.service-card__cta .btn {
  width: 100%;
  justify-content: center;
}

/* ----------------------------------------------------------------
   11. SERVICE DETAIL SECTIONS (3.1 – 3.4)
---------------------------------------------------------------- */
/* Alternating white / light-gray backgrounds */
.service-detail--welding  { background: var(--c-bg-white); }
.service-detail--electro  { background: var(--c-bg-alt); }
.service-detail--water    { background: var(--c-bg-white); }
.service-detail--concrete { background: var(--c-bg-alt); }

/* Service badge — pill with color indicator */
.service-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 18px 7px 12px;
  border-radius: 100px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 16px;
  border: 1.5px solid;
}
.service-badge--welding  { background: #F3F4F6; color: var(--c-welding);  border-color: #D1D5DB; }
.service-badge--electro  { background: #fdf8e7; color: var(--c-electro);  border-color: #FDE68A; }
.service-badge--water    { background: #E0F2FE; color: var(--c-water);    border-color: #BAE6FD; }
.service-badge--concrete { background: #F5F5F4; color: var(--c-concrete); border-color: #D6D3D1; }

.service-detail__header {
  text-align: center;
  margin-bottom: 60px;
}
.service-detail__title {
  font-size: clamp(1.75rem, 4vw, 2.375rem);
  font-weight: 800;
  color: var(--c-text);
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}
.service-detail__title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--c-primary);
  margin: 12px auto 0;
  border-radius: 2px;
}
.service-detail__lead {
  font-size: 1.0625rem;
  color: var(--c-text-muted);
  max-width: 520px;
  margin: 0 auto;
}

.service-detail__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 60px;
}
@media (min-width: 768px) { .service-detail__body { grid-template-columns: 1fr 1fr; align-items: start; } }

.service-detail__subtitle {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 16px;
}

.service-detail__list {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin-bottom: 28px;
}
.service-detail__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--c-text);
}
.service-detail__list li::before {
  content: '';
  display: block;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--c-primary-l);
  flex-shrink: 0;
  margin-top: 3px;
  position: relative;
}
.service-detail__list li::before {
  /* Checkmark via gradient */
  background: var(--c-primary);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0;
}

/* ----------------------------------------------------------------
   12. PROMO CARD (Акция)
---------------------------------------------------------------- */
.promo-card {
  background: var(--c-bg-white);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-primary);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.promo-card::after {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 100px; height: 100px;
  background: var(--c-primary);
  opacity: 0.04;
  border-radius: 50%;
}

/* Promo variations for different sections */
.promo-card--electro  { border-left-color: var(--c-electro); }
.promo-card--water    { border-left-color: var(--c-water); }
.promo-card--concrete { border-left-color: var(--c-concrete); }

.promo-card__label {
  display: inline-block;
  padding: 3px 12px;
  background: var(--c-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 100px;
  margin-bottom: 14px;
}
.promo-card--electro  .promo-card__label { background: var(--c-electro); }
.promo-card--water    .promo-card__label { background: var(--c-water); }
.promo-card--concrete .promo-card__label { background: var(--c-concrete); }

.promo-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.promo-card__body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
@media (min-width: 640px) {
  .promo-card__body { flex-direction: row; align-items: flex-start; }
  .promo-card__details { flex: 1; }
}

.promo-card__details p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--c-text-muted);
  margin: 0;
}

.promo-card__price-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  flex-shrink: 0;
}
.promo-card__price-old {
  font-size: 0.9375rem;
  color: var(--c-text-light);
  text-decoration: line-through;
}
.promo-card__price-new {
  font-family: var(--font-heading);
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--c-primary);
  letter-spacing: -0.02em;
}

.promo-card__img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  padding: 32px;
  background: var(--c-bg-alt);
  border: 2px dashed var(--c-border-md);
  border-radius: var(--radius);
  min-height: 130px;
  color: var(--c-text-muted);
  font-size: 0.875rem;
  text-align: center;
}

/* ----------------------------------------------------------------
   13. GALLERY (Наши работы)
---------------------------------------------------------------- */
.section-works { margin-top: 48px; }
.section-works__title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--c-border);
  letter-spacing: -0.01em;
}
.gallery__hint {
  margin-top: 14px;
  font-size: 0.8125rem;
  color: var(--c-text-light);
  font-style: italic;
}

/* Service section banner photo */
.service-banner {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 40px;
  max-height: 380px;
}
.service-banner img {
  width: 100%;
  height: 100%;
  max-height: 380px;
  object-fit: cover;
  display: block;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
@media (min-width: 640px)  { .gallery { grid-template-columns: repeat(3, 1fr); gap: 12px; } }
@media (min-width: 1024px) { .gallery { grid-template-columns: repeat(6, 1fr); gap: 12px; } }

.gallery__item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  cursor: pointer;
  transition: box-shadow var(--t-base);
}
.gallery__item:hover { box-shadow: var(--shadow); }

.gallery__item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.gallery__item:hover img { transform: scale(1.07); }

.gallery__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%; height: 100%;
  color: var(--c-text-light);
}
.gallery__overlay {
  position: absolute; inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: background-color var(--t-base);
}
.gallery__item:hover .gallery__overlay { background: rgba(0,0,0,0.3); }
.gallery__overlay svg { opacity: 0; transition: opacity var(--t-base); }
.gallery__item:hover .gallery__overlay svg { opacity: 1; }

/* ----------------------------------------------------------------
   14. ADDITIONAL SERVICES (Section 4)
---------------------------------------------------------------- */
.section--additional { background: var(--c-bg-white); }

.additional-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 640px)  { .additional-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .additional-grid { grid-template-columns: repeat(4, 1fr); } }

.additional-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 28px 24px;
  background: var(--c-bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  transition: box-shadow var(--t-base), transform var(--t-base), border-color var(--t-base);
  cursor: default;
}
.additional-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--c-primary);
  background: var(--c-bg-white);
}

.additional-item__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  background: var(--c-primary-l);
  border-radius: var(--radius);
  margin-bottom: 16px;
  color: var(--c-primary);
}
.additional-item__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.additional-item__text {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  line-height: 1.65;
  margin: 0;
}

/* ----------------------------------------------------------------
   15. ADVANTAGES (Section 5)
---------------------------------------------------------------- */
.section--advantages { background: var(--c-bg-dark); }

.advantages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 56px;
}
@media (min-width: 640px)  { .advantages-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .advantages-grid { grid-template-columns: repeat(5, 1fr); } }

.advantage-item {
  padding: 28px 22px 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-top: 3px solid transparent;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: background-color var(--t-base), border-top-color var(--t-base);
}
.advantage-item:hover {
  background: rgba(255,255,255,0.07);
  border-top-color: var(--c-primary);
}

.advantage-item__num {
  position: absolute;
  top: 14px; right: 18px;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(255,255,255,0.04);
  line-height: 1;
  letter-spacing: -0.03em;
}

.advantage-item__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  background: rgba(245,185,13,0.1);
  border-radius: var(--radius);
  margin-bottom: 16px;
  color: var(--c-primary);
}
.advantage-item__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  letter-spacing: -0.005em;
}
.advantage-item__text {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.48);
  line-height: 1.65;
  margin: 0;
}

.advantages__cta {
  text-align: center;
  padding-top: 8px;
}
.advantages__cta p {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
}
@media (max-width: 600px) {
  .advantages__cta .btn {
    width: 100%;
    white-space: normal;
    text-align: center;
  }
}

/* ================================================================
   16. CALLBACK MODAL
================================================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.modal.is-open {
  display: flex;
  opacity: 1;
}

.modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(20, 30, 51, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  cursor: pointer;
}

.modal__container {
  position: relative;
  background: #fff;
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}
.modal.is-open .modal__container {
  transform: translateY(0) scale(1);
}

.modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  background: rgba(0, 0, 0, 0.04);
  border: none;
  border-radius: 50%;
  color: var(--c-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: background-color var(--t-fast), color var(--t-fast);
}
.modal__close:hover {
  background: rgba(0, 0, 0, 0.08);
  color: var(--c-text);
}

.modal__header {
  padding: 24px 28px 16px;
  background: var(--c-bg-alt);
  border-bottom: 1px solid var(--c-border);
}
.modal__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.modal__logo img {
  border-radius: 4px;
}
.modal__logo-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.logo-text-spec { color: var(--c-primary); }
.logo-text-num  { color: var(--c-text); }

.modal__info {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}
.modal__info-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--c-text-muted);
  font-weight: 500;
}
.modal__info-item svg {
  color: var(--c-primary);
}
.modal__phone-link {
  color: var(--c-text);
  font-weight: 600;
  font-family: var(--font-heading);
  transition: color var(--t-fast);
}
.modal__phone-link:hover {
  color: var(--c-primary);
}

.modal__socials {
  display: flex;
  gap: 12px;
  margin-top: 4px;
}
.modal__socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--c-text-muted);
  border: 1px solid var(--c-border);
  transition: all var(--t-fast);
}
.modal__socials a:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

.modal__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}

.modal__body {
  padding: 16px 28px 24px;
}
.modal__desc {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  margin-bottom: 16px;
}

.modal__form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.form-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-text);
}
.required {
  color: #EF4444;
}

.form-input {
  width: 100%;
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--c-text);
  background: #fff;
  border: 1px solid var(--c-border-md);
  border-radius: var(--radius-sm);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.form-input::placeholder {
  color: var(--c-text-light);
}
.form-input:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(245, 185, 13, 0.15);
}
.form-input.error {
  border-color: #EF4444;
  background: #FEF2F2;
}

.form-textarea {
  resize: vertical;
  min-height: 56px;
}

.form-group--checkbox {
  margin-top: 2px;
}
.form-checkbox-label {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--c-text-muted);
  cursor: pointer;
}
.form-checkbox {
  margin-top: 3px;
  accent-color: var(--c-primary);
}
.form-checkbox-label a {
  color: var(--c-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.modal__footer {
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.btn--modal-submit {
  width: 100%;
}
.btn--modal-submit .btn-loader {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.btn--modal-submit.is-loading .btn-icon { display: none; }
.btn--modal-submit.is-loading .btn-loader { display: block; }
.btn--modal-submit.is-loading span:first-child { opacity: 0.8; }

.form-message {
  font-size: 0.875rem;
  font-weight: 500;
  text-align: center;
  padding: 10px;
  border-radius: var(--radius-sm);
  display: none;
}
.form-message.success {
  display: block;
  background: #DCFCE7;
  color: #166534;
  border: 1px solid #BBF7D0;
}
.form-message.error {
  display: block;
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #FECACA;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 480px) {
  .modal { padding: 0; }
  .modal__container {
    max-width: 100%;
    height: 100%;
    border-radius: 0;
    overflow-y: auto;
  }
  .modal__body {
    padding-bottom: 80px;
  }
}

/* Hide floating call button when modal is open */
body.modal-open .call-float {
  display: none !important;
}

/* ----------------------------------------------------------------
   16. REVIEWS (Section 6)
---------------------------------------------------------------- */
.section--reviews { background: var(--c-bg-alt); }

.reviews-slider { position: relative; overflow: hidden; }

.reviews-track {
  display: flex;
  gap: 20px;
  transition: transform var(--t-slow);
}

.review-card {
  flex-shrink: 0;
  min-width: 0;
  background: var(--c-bg-white);
  border: 1px solid var(--c-border);
  border-top: 3px solid var(--c-primary);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-sizing: border-box;
}

@media (min-width: 1024px) {
  .reviews-track { flex-wrap: wrap; justify-content: center; }
  .review-card { flex: 1; max-width: 380px; }
}

.review-card__stars { display: flex; gap: 2px; }

.review-card__text { flex: 1; margin: 0; }
.review-card__text p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-text-muted);
  margin: 0;
}

.review-card__footer {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--c-border);
}

.review-card__avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--c-bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
}

.review-card__name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--c-text);
}
.review-card__service {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
}

/* Slider controls */
.reviews-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 28px;
}
@media (min-width: 1024px) { .reviews-controls { display: none; } }

.reviews-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  background: var(--c-bg-white);
  border: 1px solid var(--c-border-md);
  border-radius: 50%;
  color: var(--c-text);
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: background-color var(--t-fast), color var(--t-fast);
}
.reviews-btn:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

.reviews-dots { display: flex; gap: 8px; align-items: center; }
.reviews-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  border: none;
  background: var(--c-border-md);
  cursor: pointer;
  padding: 0;
  transition: background-color var(--t-fast), transform var(--t-fast);
}
.reviews-dot--active { background: var(--c-primary); transform: scale(1.3); }

/* ----------------------------------------------------------------
   17. CONTACTS (Section 7)
---------------------------------------------------------------- */
.section--contacts { background: var(--c-bg-white); }

.contacts-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}
@media (min-width: 900px) { .contacts-layout { grid-template-columns: 420px 1fr; align-items: start; } }

.contacts-info { display: flex; flex-direction: column; gap: 10px; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--c-text);
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background-color var(--t-fast);
}
.contact-item--phone:hover {
  border-color: var(--c-accent);
  background: #F0FFF4;
  box-shadow: 0 2px 10px rgba(34,197,94,0.1);
}
.contact-item--telegram:hover {
  border-color: #2AABEE;
  background: #EFF8FF;
  box-shadow: 0 2px 10px rgba(42,171,238,0.1);
}

.contact-item__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px; height: 46px;
  background: var(--c-bg-white);
  border-radius: var(--radius-sm);
  color: var(--c-primary);
  flex-shrink: 0;
  box-shadow: var(--shadow-xs);
  border: 1px solid var(--c-border);
}
.contact-item__icon--telegram { color: #2AABEE; }

.contact-item__body { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.contact-item__label {
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  color: var(--c-text-light);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 600;
}
.contact-item__value {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--c-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contacts-call-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 24px;
  background: var(--c-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.0625rem;
  border-radius: var(--radius);
  text-decoration: none;
  margin-top: 8px;
  min-height: 56px;
  letter-spacing: -0.01em;
  transition: background-color var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
  box-shadow: 0 4px 16px rgba(245,185,13,0.3);
}
.contacts-call-btn:hover {
  background: var(--c-primary-h);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(245,185,13,0.4);
  color: #fff;
}

.contacts-map { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.contacts-map iframe { display: block; }
.contacts-map__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 400px;
  background: var(--c-bg-alt);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--c-border-md);
  color: var(--c-text-muted);
  text-align: center;
  padding: 32px;
}
.contacts-map__placeholder p { margin: 0; }
.contacts-map__placeholder .hint { font-size: 0.8125rem; color: var(--c-text-light); }

/* ----------------------------------------------------------------
   18. FOOTER
---------------------------------------------------------------- */
.site-footer {
  background: var(--c-bg-dark-2);
  color: rgba(255,255,255,0.6);
  padding: 56px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
@media (min-width: 640px) { .footer-inner { grid-template-columns: 260px 1fr; } }

.footer-brand { display: flex; flex-direction: column; gap: 16px; }

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #fff;
}
.footer-logo__name {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}
.footer-logo__phone { font-size: 0.875rem; color: rgba(255,255,255,0.45); }
.footer-logo__phone a {
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  transition: color var(--t-fast);
}
.footer-logo__phone a:hover { color: var(--c-primary); }

.footer-desc {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.38);
  line-height: 1.7;
  margin: 0;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 479px) { .footer-nav { grid-template-columns: 1fr 1fr; } }

.footer-nav__title {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 16px;
}
.footer-nav__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-nav__col a, .footer-nav__col li {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  transition: color var(--t-fast);
}
.footer-nav__col a:hover { color: var(--c-primary); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  padding: 20px 0;
}
.footer-copy { font-size: 0.8125rem; color: rgba(255,255,255,0.25); margin: 0; }
.footer-copy--center { text-align: center; flex: 1; }
.footer-dev-link {
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-dev-link:hover { color: var(--c-primary); }

/* ----------------------------------------------------------------
   19. REVEAL ON SCROLL
---------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ----------------------------------------------------------------
   20. ACCESSIBILITY UTILITY
---------------------------------------------------------------- */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}